Fan backlash after Beyonce's Good Morning America segment

BEYONCE is facing backlash after a promotional announcement for a diet book on 'Good Morning America' was teased as all morning to viewers as 'amazing' news.

Fans were all set up for the latest, juciest piece of celebrity gossip involving the 33-year-old singer, but were disappointed when the show ran a video clip in which the singer promoted a diet book, "The 22-Day Revolution."

She said she had always "struggled" with her diet and was overjoyed when a vegan eating plan helped her keep it off.

Beyonce- who has three-year-old daughter Blue Ivy with husband Jay Z - is delighted with the 22-Day Diet Revolution, a vegan plan devised by Marco Borges, because she has finally found lasting results.

Speaking in a video-taped segment, she said: "I am not naturally the thinnest woman. I have curves, I'm proud of my curves. I have struggled since a young age with diets. Finding something that actually works, that actually keeps the weight off has been difficult for me."

And as well as losing weight, the 'Feeling Myself' singer found other benefits with the plant-based meal plan.

She said: "I felt like my skin was really firm, a lot tighter than when I deprived myself of food and got the weight off fast. The weight stayed off."

Prior to her appearance on the show, a teaser had appeared in which Beyonce said: "This is something I have to share with everyone."

The short clip sparked speculation she would be announcing a new album or even another pregnancy, but instead she went on the program to promote 22 Days Nutrition, her and Marco's meal delivery service, which was first announced in February.